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Your post is NOT too long, it is MUCH too short.

You should EXPLAIN which log contains what. Now we need to spend SIGNIFICANT time to figure out ourselves even to BEGIN comprehending what is in the logs...

Then the problem with like 90% of data in the log ARE ZEROES!!! No fuel pressure data, boost data are ALLMOST all ZEROES too. Does that mean your boost is faulty or just data logger issue??? I have no idea. So have no idea too what you used to make logs, but its TOTAL CRAP. Use ISTA expert mode and make PROPER logs.

From like 5 or 6 somewhat useful numbers which are NOT zeroes IMHO you could try disconnecting air mass sensor... On one sheet you have >100kg/h air mass and some boost pressure just revving (what looks like at a standstill), and then puny 44kg/h MAX with NO boost at all while in 3rd gear... But then you pressed accelerator pedal JUST to 18% while in 3rd, so who knows...

So if mas air flow disconnect does hot help, make PROPER logs and PRESS THE GAS seriously while doing that in 3rd!

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P.S. Usually flashing removes tuning fully.